baber/WOPTO huggingface dataset:
Patent GB-2276915-A (GB)
Title: Friction stay with geared pivotal connection
Inventor: DAVIS RONALD PERCIVAL
IPC: E05D15/44
Filed: 1994-03-21
Abstract: A four bar friction window stay for mounting a window sash in a window frame has a geared pivotal connection (9, 10) between the frame end of the short arm 1 and the frame plate 3. The connection comprises a gear 9 rotatably mounted to the frame end of the short arm 1 which engages a rack 10 on the frame plate such that during closing and opening of the stay the frame end of the short arm is moved towards and away from the head of the stay. The window stay may also incorporate a locking head for security (13, Fig. 1) a movable long arm frame plate joint (34, Fig. 12) which allows the window to be opened widely for emergency egress for example, and a safety catch (44, Fig. 19) which can be used to limit the angle of opening of the window. <IMAGE>
Patent GB-2276449-A (GB)
Title: Interferometer strain sensor
Inventor: FUERSTENAU NORBERT
IPC: G01B9/02
Filed: 1994-03-24
Abstract: An interferometer strain sensor or gauge comprises a laser diode 1 coupled to an interferometer 6 with an opto-electric output converter 10; the output of converter 10 is supplied via a differentiating unit 16 to an interference-fringe counter 18 and via a feedback amplifier 11 to the current supply 13 of the laser diode to vary the wavelength thereof, the interference signal being in the form of a saw-tooth pattern with steep edges to produce rapid transitions for the differentiating unit 16. <IMAGE>
Patent GB-2291134-A (GB)
Title: Fan assembly
Inventor: BIGGS COLIN
IPC: F04D29/36
Filed: 1994-07-02
Abstract: A fan assembly comprises a plurality of impeller blades (20) mounted to a rotatable hub (10). The hub (10) has a part-spherical surface (12) which is a solid of rotation about the rotational axis A - A of the hub. Each impeller blade (20) has a concave inner end which seats on the part-spherical surface (12) of the hub (10), such that the blades project radially therefrom. The tips of the blades (20) seat against a part-spherical surface (30) of a duct. The position of each blade (20) can be adjusted to alter the angle of its axis B - B relative to the axis A - A and/or by rotation about its axis B - B to vary the operating characteristics of the fan assembly. <IMAGE>
Patent GB-2280909-A (GB)
Title: Method of manufacturing fibre-reinforced engine components and components manufactured by the method
Inventor: WEI WILLIAM
IPC: C23C14/18
Filed: 1994-07-21
Abstract: Long to continuous silicon carbide fibres (13), (14), (15) are coated by sputtering or evaporation-coating with a matrix metal comprising a titanium-based alloy and then are wound onto a mould (12) in the direction of the anticipated stresses. A covering by means of foils, bands, pressed-on granulates, sintered-on powders or a top coating of matrix metal is then applied onto the surface of the wound mould (12) and finally the mould (12) with the wound-on, matrix-material-coated fibres (13), (14), (15) and the covering of matrix metal is subjected to hot isostatic pressing. This method is used to manufacture engine shafts, cover bands for turbine wheels or disk-free turbine wheels comprising rings with blades. <IMAGE>
Patent GB-2294777-A (GB)
Title: Photographic colour material
Inventor: SIMONS MICHAEL JOHN
IPC: G03C7/30
Filed: 1994-09-16
Abstract: A photographic fluorescent interlayer scanning readout film comprised of:      a support and, coated on the support, a sequence of superimposed red-, green- and blue-recording silver halide emulsion layer units that produce silver images of substantially the same hue upon processing, and one of said units contains a dye image forming compound capable of forming a dye image spectrally distinguishable from the silver images on development, and a fluorescent or luminescent layer located between two of the non-dye image forming units. The dye-image forming compound is preferably a colour coupler in the blue layer but may be a leuco dye, a redox dye releaser or a hidden dye which produces a dye on development by removal of a blocking group.
Patent GB-2293310-A (GB)
Title: Display wallet
Inventor: KENCH TONY
IPC: B42D1/08
Filed: 1994-09-22
Abstract: A wallet (1) suitable for the simultaneous display of a large number of photographic prints comprises a front (2) and a rear (3) cover with a hinged connection (4) therebetween, a flap (9) which folds over the closed wallet, closure means for retaining the wallet in the closed position, and a plurality of display sheets (5) in a line, the first display sheet being attached via a hinged connection (7) to the wallet cover and each succeeding sheet being attached via a hinged connection (8) to the sheet preceding it. Each display sheet comprises a plurality of pockets (6) for holding photographic prints.   <IMAGE>
Patent GB-2284898-A (GB)
Title: Nuclear quadrupole resonance spectroscopy
Inventor: SMITH JOHN ALEC SYDNEY
IPC: G01V3/14
Filed: 1994-12-13
Abstract: A method of detecting the presence of a given quadrupolar nucleus in a sample, the resonance frequency and spin-lattice relaxation time of the nucleus varying with a given environmental parameter, comprises determining a range of the resonance frequency which corresponds to a selected range of the parameter, applying excitation to the sample to excite nuclear quadrupole resonance, and detecting the resonance response signal, the excitation being such that a detectable resonance response signal can be excited over the resonance frequency range, and being such as to produce a constant flip angle of less than 45 degrees actual. <IMAGE>
Patent GB-2298977-A (GB)
Title: Tuner with gain control in dependence on locked/unlocked state of PLL
Inventor: SMITH DAVID WALTER
IPC: H03G3/20
Filed: 1995-03-16
Abstract: A tuner circuit for TV, VCR, radio or other use comprises a high frequency amplifier (2), the gain of which is controlled by an automatic gain control (AGC) and a PLL circuit (5). In order to reduce abnormal effects before the PLL is locked, a signal from the PLL lock detect terminal (8) is used to control a switch (10) which reduces the level of the input AGC voltage to the amplifier only when the PLL is unlocked.
Patent GB-2302501-A (GB)
Title: Turntable for display of goods
Inventor: HUANG LI-SUI
IPC: F16M11/18
Filed: 1995-06-24
Abstract: The turntable 1 carries two sleeves 21, 22 grooved on their inner sides and rotatably mounted via ball bearings 24 to a grooved bushing 24 whose inner surface is driven by friction wheel 123 of motor unit 122. The arrangement allows the motor to continue rotating when the turntable top is forcibly stopped. The motor and wheel are spring-loaded against the bushing by way of carriage 12 which can slide with respect to the fixed plate 11. The motor can be disengaged from the drive position by means of lever 141 which operates a cam mechanism (see Fig 5).
Patent GB-2312115-A (GB)
Title: Optical image writing arrangement
Inventor: COOK PAUL CHRISTOPHER
IPC: B41J2/47
Filed: 1996-04-09
Abstract: An imaging arrangement for an image writing apparatus, such as a platesetter, comprises a field lens 30 which directs light from a scanning arrangement to a relay lens 22 and on to a recording medium 24 (eg photosensitive film). The focal length of the field lens 30 is selected to direct the principal rays through a common point 32, which point is at a distance from the relay lens equal to its focal length. The arrangement prevents any variation in distance between points in the scan line if variation of distance between film 24 and relay lens occurs, however it does not prevent the location of the scan line from wandering. Thie may be overcome by (Figure 5) displacing the field lens 30 such that the principal rays (P, Q, R) are deflected so as to be parallel after passing through the relay lens (22). The scanning light may be in the visible, infra-red or ultra-violet regions of the spectrum.
Patent GB-2303143-A (GB)
Title: Detergent compositions
Inventor: MOSS MICHAEL ALAN JOHN
IPC: C11D1/22
Filed: 1996-05-31
Abstract: There is provided a detergent composition suitable for use in laundry or dish washing methods comprising  (a) a cationic ester surfactant; and (b) a hydrophobic organic peroxyacid bleaching system, capable of providing a hydrophobic organic peroxyacid compound.  The cationic ester surfactant is preferably a quaternary ammonium compound where one of the alkyl chains is interrupted by an ester-type linkage. The bleaching system may comprise the peroxyacid itself or a precursor therefor.
Patent GB-2313916-A (GB)
Title: Method and apparatus for testing strength of materials
Inventor: HESLOP PETER
IPC: G01N3/00
Filed: 1996-06-04
Abstract: A method for testing the strength of materials in situ by measuring the torque necessary to deform the material and comparing to known values. A hole is drilled in the material to a specified depth and the hole is deformed by inserting a spline with a stellated circular cross section. A second spline of similar cross section but smaller radius is then inserted in the same hole ad the torque necessary to rotate the spline, further deforming the material, is measured. This torque is indicative of the strength of the material.
Patent GB-2318687-A (GB)
Title: Mounting modules for consumer units
Inventor: COLE ANTHONY ROBERT
IPC: H02B1/42
Filed: 1996-10-24
Abstract: A mounting module (32), for use in a consumer unit (10) moulded from an electrically insulating material, comprises a generally sheet-form mounting member (36) with side walls (38) depending downwardly therefrom. The upper surface of the mounting member has an integrally formed DIN-type mounting rail (40) for providing at least two locating positions, each for locating a DIN-type switch or a DIN-type protection device for an outgoing sub-circuit.
Patent GB-2307610-A (GB)
Title: Differential amplifiers and compound transistors using diodes or resistors to balance numbers of base-emitter or collector-base type junctions etc.
Inventor: PALLARIS THEODOROS LOIZOS
IPC: H03F3/343
Filed: 1996-11-06
Abstract: An amplifier has a complementary differential input stage (S1 to S3), two stages (S4, S5) of voltage amplification, and two stages (S6, S7) of current amplification. Compared with a conventional amplifier, additional diodes are included so that any path (e.g. S1 to S7) between the supply rails (V+, V-) can be divided in four quarters (P1 to P4) each containing the same number of diodes, base-emitter junctions or the like, and each containing the same number of resistors, collector-emitter junctions or the like. The long-tail nodes (LT1, LT2) of the input stage are tied together by a pair of diodes (D5a, D5b) or the like. Additional connections (C3 to C10) are made between the input stage and the voltage amplification stages. To counteract the imbalance caused by these connections, compensating diodes (D37a to D38b) are included between the loads and complementary long-tails in the input stage. The transistors in the voltage and current amplification stages are arranged as modified forms of Darlington pair (e.g. T9, T11; T13, T15) and as modified forms of Sziklai pair (e.g. T11, T13). In Figure 57a feedback circuit (R33, R34) is arranged to place as great a load on the amplifier as the output load (R35, R36). Other modifications may be made to the loads and the long-tails of the input stage, and to the input biassing.
Patent GB-2312436-A (GB)
Title: Ink and toner compositions based on derivatives of 3-alkanoyl-2-[2-alkanoylamino-4-(dialkylamino)phenylazo]-5-nitrothiophene dyes
Inventor: GREGORY PETER
IPC: G03G9/09
Filed: 1997-03-26
Abstract: An ink composition comprises:  (i) a medium comprising a low melting point solid, an organic solvent, or a mixture of water and one or more water-soluble organic solvent(s); and (ii) an azothiophene of Formula (1):   wherein: R, R 1 , R 2 and R 3 each independently is optionally substituted alkyl or alkenyl. A toner resin composition comprises an azothiophene of Formula (1), and a lower resin. Both of these compositions may also contain a further dye, eg an azothiophene of Formula (4) or an azo compound of Formula (5) as defined in the specification. Also claimed are a process for ink jet printing of textiles using the inks and a process for ink jet printing a substrate with the inks.
Patent GB-2313070-A (GB)
Title: Improved steam reforming catalysts for lower hydrocarbons
Inventor: SHOJI KAZUO
IPC: B01J23/78
Filed: 1997-05-13
Abstract: An improved steam reforming catalyst for lower hydrocarbons comprising a support constituted of CaO and Al 2 O 3 and an active component comprising nickel or a platinum-group metal. The content of CaO is 0.5 to 25 wt% based on the catalyst, and at least part of the CaO forms compounds with the Al 2 O 3 . The support has a void fraction X of pores with a diameter of 0.5 ~m to 20 ~m of 0.08 or higher, a void fraction Y of pores with a diameter smaller than 0.5 ~m of 0.15 or higher, and a total void fraction Z of 0.23 to 0.8 (provided that Z* <------ solidus * (X+Y) ). The catalyst is highly active and has a high crushing strength.
Patent GB-2314793-A (GB)
Title: Welding fastening elements
Inventor: KURZ ROLAND
IPC: B23K9/20
Filed: 1997-06-18
Abstract: An electric welding device for welding a fastening element (4) having a through-duct (17) on a workpiece comprises a conveying and holding system (1) having a guide member (2) with a guide duct (3) for the fastening element (4). A loading member (6) which is capable of moving to and fro in the guide duct has a duct (9) with an inlet (10) and an outlet (11) formed on the head (7). A gas supply duct (12) opens into the guide duct (3)and the loading member (6) closes the gas supply duct (12) in a first position. In a second position, the loading member (6) connects the inlet (11) to the gas supply duct (12) so a gas flows to the welding position during the welding process.
Patent GB-2315103-A (GB)
Title: Linear bearing arrangement
Inventor: KLEBER RAINER
IPC: F16C29/12
Filed: 1997-06-30
Abstract: A linear bearing arrangement comprises guide rail (1), a carrier body (6) and at least one pair of track rollers (5), each of which is configured as an outer bearing ring of a rolling bearing and supported on one side of the guide rail, the rolling elements (7) of the rolling bearing being disposed between the track rollers and inner bearing rings (8) fixed to the carrier body by screws (9) inserted into threaded bores (10). At least one of the rolling bearings comprises a clamping bush (12) with rubber-like elastic properties arranged in the bore of the inner bearing ring around the screw. The bush is pressed axially by the screw so as to urge the track roller towards the running rail. The bush may comprise a recess (13) on the side remote from the rail.
Patent GB-2316412-A (GB)
Title: Colour pigmented ink jet ink set
Inventor: SANTILLI DOMENIC
IPC: C09D11/00
Filed: 1997-08-14
Abstract: A colour ink jet ink set comprises:  (i) a first ink comprising a carrier and, as cyan colourant, a bridged aluminium phthalocyanine pigment, preferably bis(phthalocyanylalumino)tetraphenyldisiloxane, optionally with up to 20% by weight of copper phthalocyanine and/or hydroxyaluminium phthalocyanine; (ii) a second ink comprising a carrier and, as magenta colourant, a quinacridone pigment, preferably pigment red 122; (iii) a third ink comprising a carrier and a non-benzidine yellow pigment, preferably at least one of pigment yellow 74, 138, 139, 154, 185 and 180.  Pigment black 7 may be included as a fourth ink. Each ink preferably comprises from 0.1 to 10% of total pigment, whilst the carrier may be selected from water and water-miscible organic solvents.
Patent GB-2316990-A (GB)
Title: Subsea line with corrosion prevention
Inventor: ANTONSEN ROY EIVAND
IPC: C23F13/16
Filed: 1997-08-26
Abstract: The line comprises a number of fluid/gas conducting steel tubes (1,3) and possibly other elongated elements (4) e.g. electrical conductors and cables enclosed, and containing elongated sacrificial elements. At least one of the tubes (1, 3) is made of carbon steel and that at least one sacrificial element (2,5) which is constituted by one or more tapes or strips made of a material less noble than steel is in substantially continuous contact with the surface(s) of at least one carbon steel tube. The line may include a sea water permeable outer cover (6). The tapes or strips (2, 5) are helically wound and formed of zinc or aluminium or zinc/aluminium alloy. Filler elements (7, 8) limit but do not eliminate free space, all interstices being filled with bitumen or non-corrosive gel.
Patent GB-2329399-A (GB)
Title: Container for accomodating toilet flush water treatment composition
Inventor: LHOSTE JEAN-FRANCOIS
IPC: E03D9/02
Filed: 1997-10-07
Abstract: A container for accommodating a composition for treating the water in a toilet bowl of a water closet comprises a chamber (1) and a hook-like portion (2) for suspending the container from the rim of the toilet bowl. The chamber and the hook-like portion are connected by means of an arm (3) of adjustable length so that the chamber can be located in the path of the flushing water irrespective of the size of the rim. Preferably said arm comprises first and second portions (4 and 5) which are axially displaceable with respect to each other, one of said portions including a protruding part (6,7) in frictional engagement with the other of said portions.
Patent GB-2330221-A (GB)
Title: Optimisation of relational database queries
Inventor: ALDRED BARRY KEITH
IPC: G06F17/30
Filed: 1997-10-09
Abstract: A data retrieval system stores a plurality of objects having a multi-level hierarchical relationship, each object having a respective parent and a set of children. The system stores one or more base tables, the or each base table comprising a respective set of attributes associated with a sub-set of objects in the system, and generates for the, or each, base table a respective complementary table, the or each complementary table comprising a set of attributes excluding the attributes of the associated base table. The system further includes an expression optimiser adapted to interpret a query comprising an expression including one or more operations, each operation having a respective operator and one or more associated operands. The optimiser tracks a number of objects associated with the or each operation and any attributes associated with the operation; and re-formulates the expression accordingly. The system enables optimisation of relational expressions, by transforming a supplied expression into one which is faster (less resource consuming) to evaluate. It eliminates unnecessary operations, and possibly re-orders others, this results in the elimination of certain base relations from an expression, where possible.
Patent GB-2322253-A (GB)
Title: Masking video data error
Inventor: PARK DONG-SEEK
IPC: H04N19/895
Filed: 1997-12-08
Abstract: An apparatus and method for masking video data errors by detecting direct current errors of a block unit during the decoding of video data. A video frame is composed of a plurality of macro blocks formed of a plurality of blocks, each having a predetermined size and a direct current (DC) value. The apparatus includes a first frame storing portion (510) for storing video data of a previous frame, and a second frame storing portion (520) for storing video data of a present frame. An error detector (530) calculates a direct current value difference between the respective blocks in the decoded video data and detects a specific macro block error, when the difference value is greater than a reference threshold. A controller (540) copies the data of the same position stored in the first frame storing portion (510) to the second frame storing portion (520), when errors are detected in the error detector (530). On the other hand, the DC error detector writes the data in the second frame storing portion when no errors are detected. Errors within the video data are masked by determining whether the DC errors are generated. This method is preferred when a channel is passed by performing low rate video coding with respect to a video sequence using the H.263 standard, thus preventing error propagation.
Patent GB-2338481-A (GB)
Title: Electrochemical curable resin compositions
Inventor: ELLIS KEITH G
IPC: C08K3/22
Filed: 1998-06-16
Abstract: An uncured resin composition contains an electrically conductive filler and the precursor of a curing agent. When electric current is passed through the resin composition the curing agent, e.g. a proton released from water, a Lewis acid or an alcohol, is formed and the composition is then cured. The filler may be a sub-stoichiometric oxide of titanium, e.g. Ti 4 O 7 . The curing of a composition comprising 4-vinylcyclohexenedioxide, an epoxy resin and a titanium suboxide is described.
Patent GB-2323827-A (GB)
Title: Steering device with hydraulic coupling for a motor vehicle
Inventor: BOHNER HUBERT
IPC: B62D5/00
Filed: 1997-11-24
Abstract: A steering device has a steering shaft 1, connected to a steering wheel, and a piston-cylinder unit 2 for connecting a the steering shaft to the steering-angle specifying device. The piston-cylinder unit is arranged with its longitudinal axis 3 transverse to the steering shaft and has a double piston 5 which divides the cylinder into two working chambers 7a, 7b arranged on opposite sides of the steering shaft 1. The piston-cylinder unit is part of a standby emergency hydraulic system for use on failure of a main electrical power steering system. An electric motor 12 provides feedback to the shaft 1 when the electrical power steering operates and can act as a servomotor when the standby hydraulic system takes over.
Patent GB-2327693-A (GB)
Title: Diverter flow line seal
Inventor: PETRASH DONALD R
IPC: F16J15/46
Filed: 1998-07-03
Abstract: A diverter body having an upper portion 23, a central portion 25 and a lower portion 27 is secured to the upper end of a riser and lands in a housing 13. The central portion has lateral flow openings 30 that axially align with a lateral flowline outlet 15 in the housing. A pair of identical gallery seals 31 locate above and below the lateral flowline outlet. The upper gallery seal is located between the upper portion, the central portion and the housing. The upper gallery seal has upper and lower metal rings 33 and 35 and a central elastomer 37 sandwiched therebetween. An outer diameter of the elastomer 43 seals against the housing bore 14. The rings are symmetric and are mated to the elastomer along interfaces 45 and 47 which are S-shaped in cross-section to form shoulders 49. The shoulders face radially inward. An annular cavity and a pair of flexible annular lips 53 are formed along the inner diameter portion of the elastomer. A passage extends through the diverter bodies 55 and communicates with the cavity. Hydraulic fluid is pumped through the passages to pressurize the cavities and energize the elastomers, forcing the outer diameter portions of the elastomers outward to seal against the bore.
Patent GB-2335510-A (GB)
Title: Closed loop control for desulphating a NOx trap
Inventor: ASIK JOSEPH RICHARD
IPC: F01N13/02
Filed: 1998-08-13
Abstract: A system for desulphating a NOx trap 18 utilizes a closed loop control 26 of the air-to-fuel (A/F) ratio in order to accurately maintain a precise A/F ratio during desulphation. An oxygen sensor 30 is positioned in the middle of the trap 18 to provide an actual A/F ratio measurement, which is subsequently compared to a target A/F ratio in order to generate a correction signal, which is used to adjust the operation of the engine's fuel injector(s) 22. The trap oxygen sensor 30 can also be used to adaptively update engine state conditions for a more precise switch-over to a trap regeneration phase. A further oxygen sensor 28 is provided for controlling the A/F ratio of the engine exhaust during normal operation of the engine, such as during the stoichiometric phase of the lean burn operation.